The 105 Rear Derailleur RD-5701 by Shimano - Stable and durable The Shimano 105 RD-5701 10-speed rear derailleur features the Wide-Link design tried and tested on Dura-Ace and Ultegra, which ensures particular stability thanks to a larger distance between the bearing points and wider parallelogram bodies. This also maintains the precise shifting function for longer. Both the outer and inner cages of the rear derailleur are made of lightweight aluminium. Specifications: Series: 105 5700 Application: Road Gearing: 10-speed Mount: standard Capacity: 34 tooth (short), 40 tooth (long) Compatibility: Shimano Road 10-speed Compatibility - Chains: HG 10-speed Technical Information: Derailleur Pulleys: 11-tooth Outer Cage Material: Aluminium Inner Cage Material: Aluminium Other Materials: aluminium, steel, stainless steel Compatibility: 2X10-speed / 3x10-speed: Shift/Brake Lever: ST-6700, ST-5700, ST-4600, ST-R460, SL-R780 Shifter: SL-4600, SL-R460 Cassette: short: CS-6700, CS-5700, CS-4600, CS-HG500-10 long: CS-6700, CS-5700, CS-HG500-10, CS-4600, CS-M771-10, CS-HG81-10, CS-HG62-10 Chain: CN-7901, CN-6701, CN-5701, CN-4601, CN-7801, CN-6600, CN-5600 Features: most impressive shifting function under all conditions Wide-Link design to reduce shifting deflection the higher rigidity maintains the precise shifting function longer painted cage plates 2 fluorine-coated joint bushes -5701 105 10-speed rear derailleur, SS ,max 30T, black